fixed color palette. Sass has no way of 1. obtaining a declared variable by a string, and 2. getting a Color object from a string (required for functions such as darken)

sass/_mixins-fullpalette.scss

@@ -2,17 +2,24 @@
 
 @mixin generic-variations-colors($args) {
 
+  // FIXME: see _mixins.scss regarding variable names and the below FIXME
   $material-color-names: "red" "pink" "purple" "deep-purple" "indigo" "blue" "light-blue" "cyan" "teal" "green" "light-green" "lime" "yellow" "amber" "orange" "deep-orange" "brown" "grey" "blue-grey";
   @each $material-color-name in $material-color-names {
     // given a color build multiples depths
     $material-color-numbers: "" "-50" "-100" "-200" "-300" "-400" "-500" "-600" "-700" "-800" "-900" "-A100" "-A200" "-A400" "-A700";
     @each $material-color-number in $material-color-numbers {
 
-      $args: map-merge($args, (
+      $args-variation-color: map-merge($args, (
+              material-color-name: $material-color-name,
               material-color-number: $material-color-number
       ));
 
-      @include generic-variations-color($args)
+      // FIXME: these colors are defined in _colors.scss.  Since there is no way to access a variable as a string
+      // FIXME: in sass, this needs to be changed to get a permutation as an actual variable.
+      // FIXME: http://krasimirtsonev.com/blog/article/SASS-interpolation-in-a-name-of-variable-nest-variables-within-variables
+
+      // FIXME: this shows a valid approach and adds a color function: https://github.com/darrenkopp/libsass-net/issues/12
+      @include generic-variations-color($args-variation-color)
     }
   }
 }

sass/_mixins-shared.scss

@@ -36,15 +36,14 @@
 }
 
 @mixin button-variations-content($args) {
-
+  //@debug "#{inspect($args)}";
-  @debug "#{inspect($args)}";
-
   $material-color: map-get($args, material-color);
   $material-param-1: map-get($args, material-param-1);
   $contrast-factor: map-get($args, contrast-factor);
-  background-color: contrast($material-color, darken($material-color, $material-param-1), lighten($material-color, $material-param-1), $contrast-factor);
+  background-color: contrast($material-color,
-
+          darken($material-color, $material-param-1),
-  //@error "break here";
+          lighten($material-color, $material-param-1),
+          $contrast-factor);
 }
 
 @mixin bg-color-variations($extra, $default, $material-param-1) {
@@ -73,8 +72,6 @@
   }
 }
 
-
-
 //
 // To use this mixin you should pass a function as final parameter to define
 // the style. In that definition you can use the following variables to define it.
@@ -188,13 +185,14 @@
   $material-color-name: map-get($args, material-color-name);
   $material-color-number: map-get($args, material-color-number);
   $material-color-full-name: "#{$material-color-name}#{$material-color-number}";
-  $material-color: $material-color-full-name;
+  $material-color: map-get($args, material-color); // $material-color-full-name;
+  $material-text-color: contrast($material-color, $lightbg-text, $darkbg-text, map-get($args, contrast-factor));
 
   & -material-#{$material-color-name}#{unquote($material-color-number)}#{map-get($args, extra)} {
     $args-color: map-merge($args, (
             material-color-full-name: $material-color-full-name,
             material-color: $material-color,
-            material-text-color: contrast($material-color, $lightbg-text, $darkbg-text, map-get($args, contrast-factor)),
+            material-text-color: $material-text-color,
     ));
 
     @include call-variations-content-mixin($args-color);

sass/_mixins.scss

@@ -2,19 +2,58 @@
 
 @mixin generic-variations-colors($args) {
 
-  $material-color-names: "red" "pink" "purple" "deep-purple" "indigo" "blue" "light-blue" "cyan" "teal" "green" "light-green" "lime" "yellow" "amber" "orange" "deep-orange" "brown" "grey" "blue-grey";
+  //$material-color-names: $red $pink $purple $deep-purple $indigo $blue $light-blue $cyan $teal $green $light-green $lime $yellow $amber $orange $deep-orange $brown $grey $blue-grey;
-  @each $material-color-name in $material-color-names {
-    //// given a color build multiples depths
-    //$material-color-numbers: "" "-50" "-100" "-200" "-300" "-400" "-500" "-600" "-700" "-800" "-900" "-A100" "-A200" "-A400" "-A700";
-    //@each $material-color-number in $material-color-numbers {
-    //  @include generic-variations-color($mixin-name, $extra, $default, $contrast-factor, $material-color-name, $material-color-number)
-    //}
 
+  $material-colors: (
+          "red": $red,
+          "pink": $pink,
+          "purple": $purple,
+          "deep-purple": $deep-purple,
+          "indigo": $indigo,
+          "blue": $blue,
+          "light-blue": $light-blue,
+          "cyan": $cyan,
+          "teal": $teal,
+          "green": $green,
+          "light-green": $light-green,
+          "lime": $lime,
+          "yellow": $yellow,
+          "amber": $amber,
+          "orange": $orange,
+          "deep-orange": $deep-orange,
+          "brown": $brown,
+          "grey": $grey,
+          "blue-grey": $blue-grey
+  );
+
+  @each $material-color-name, $material-color in $material-colors {
     // build a single depth color palette
-    $args: map-merge($args, (
+    $args-variation-color: map-merge($args, (
+            material-color-name: $material-color-name,
+            material-color: $material-color,
             material-color-number: ""
     ));
 
-    @include generic-variations-color($args)
+    @include generic-variations-color($args-variation-color)
   }
+
+  //@each $material-color-name in $material-color-names {
+  //  //// given a color build multiples depths
+  //  //$material-color-numbers: "" "-50" "-100" "-200" "-300" "-400" "-500" "-600" "-700" "-800" "-900" "-A100" "-A200" "-A400" "-A700";
+  //  //@each $material-color-number in $material-color-numbers {
+  //  //  @include generic-variations-color($mixin-name, $extra, $default, $contrast-factor, $material-color-name, $material-color-number)
+  //  //}
+  //
+  //  // build a single depth color palette
+  //  $args-variation-color: map-merge($args, (
+  //          material-color-name: $material-color-name,
+  //          material-color-number: ""
+  //  ));
+  //
+  //  @include generic-variations-color($args-variation-color)
+  //}
 }
+
+
+// http://hugogiraudel.com/2014/01/27/casting-types-in-sass/
+// https://github.com/HugoGiraudel/SassyJSON/blob/master/stylesheets/decode/helpers/color/_color.scss